The Milwaukee Brewers are holding their breath right now about one of the key cogs of the starting rotation.

In the second inning of Thursday's contest against the Arizona Diamondbacks, Brewers starter Brandon Woodruff was forced to exit. Beforehand, he had a significant drop in velocity. ESPN's Jeff Passan pointed out that he didn't reach 87 miles per hour , despite sitting at 92.5 miles per hour to begin the season.

"Brandon Woodruff exited his start for Milwaukee in the second inning. His fastball didn't even reach 87 mph after sitting at 92.5 all year. Tough luck for the Brewers, though they do plenty of starting-pitching depth, with Logan Henderson carving at Triple-A and big league-ready," Passan wrote.

On Thursday, Woodruff averaged 85.4 miles per hour on his fastball before being taken out.…